2217130884 has 36 divisors (see below), whose sum is σ = 5611848060. Its totient is φ = 738063360.

The previous prime is 2217130879. The next prime is 2217130897. The reversal of 2217130884 is 4880317122.

It can be written as a sum of positive squares in 2 ways, for example, as 558849600 + 1658281284 = 23640^2 + 40722^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13069 + ... + 67860.

Almost surely, 2^2217130884 is an apocalyptic number.

It is an amenable number.

2217130884 is an abundant number, since it is smaller than the sum of its proper divisors (3394717176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2217130884 is a wasteful number, since it uses less digits than its factorization.

2217130884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81700 (or 81695 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2217130884 is about 47086.4193159769. The cubic root of 2217130884 is about 1303.9585225556.

The spelling of 2217130884 in words is "two billion, two hundred seventeen million, one hundred thirty thousand, eight hundred eighty-four".